326 lines
10 KiB
Nix
326 lines
10 KiB
Nix
{ config, lib, pkgs, utils, ... }:
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with lib;
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let
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cfg = config.services.ipfs;
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ipfsFlags = utils.escapeSystemdExecArgs (
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optional cfg.autoMount "--mount" ++
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optional cfg.enableGC "--enable-gc" ++
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optional (cfg.serviceFdlimit != null) "--manage-fdlimit=false" ++
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optional (cfg.defaultMode == "offline") "--offline" ++
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optional (cfg.defaultMode == "norouting") "--routing=none" ++
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cfg.extraFlags
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);
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profile =
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if cfg.localDiscovery
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then "local-discovery"
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else "server";
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splitMulitaddr = addrRaw: lib.tail (lib.splitString "/" addrRaw);
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multiaddrToListenStream = addrRaw:
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let
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addr = splitMulitaddr addrRaw;
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s = builtins.elemAt addr;
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in
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if s 0 == "ip4" && s 2 == "tcp"
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then "${s 1}:${s 3}"
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else if s 0 == "ip6" && s 2 == "tcp"
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then "[${s 1}]:${s 3}"
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else if s 0 == "unix"
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then "/${lib.concatStringsSep "/" (lib.tail addr)}"
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else null; # not valid for listen stream, skip
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multiaddrToListenDatagram = addrRaw:
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let
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addr = splitMulitaddr addrRaw;
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s = builtins.elemAt addr;
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in
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if s 0 == "ip4" && s 2 == "udp"
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then "${s 1}:${s 3}"
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else if s 0 == "ip6" && s 2 == "udp"
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then "[${s 1}]:${s 3}"
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else null; # not valid for listen datagram, skip
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in
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{
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disabledModules = [
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"services/network-filesystems/kubo.nix"
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];
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###### interface
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options = {
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services.ipfs = {
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enable = mkEnableOption (lib.mdDoc "Interplanetary File System (WARNING: may cause severe network degredation)");
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package = mkOption {
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type = types.package;
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default = pkgs.ipfs;
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defaultText = literalExpression "pkgs.ipfs";
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description = lib.mdDoc "Which IPFS package to use.";
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};
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user = mkOption {
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type = types.str;
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default = "ipfs";
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description = lib.mdDoc "User under which the IPFS daemon runs";
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};
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group = mkOption {
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type = types.str;
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default = "ipfs";
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description = lib.mdDoc "Group under which the IPFS daemon runs";
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};
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dataDir = mkOption {
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type = types.str;
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default =
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if versionAtLeast config.system.stateVersion "17.09"
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then "/var/lib/ipfs"
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else "/var/lib/ipfs/.ipfs";
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defaultText = literalExpression ''
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if versionAtLeast config.system.stateVersion "17.09"
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then "/var/lib/ipfs"
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else "/var/lib/ipfs/.ipfs"
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'';
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description = lib.mdDoc "The data dir for IPFS";
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};
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defaultMode = mkOption {
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type = types.enum [ "online" "offline" "norouting" ];
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default = "online";
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description = lib.mdDoc "systemd service that is enabled by default";
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};
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autoMount = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc "Whether IPFS should try to mount /ipfs and /ipns at startup.";
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};
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autoMigrate = mkOption {
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type = types.bool;
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default = true;
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description = lib.mdDoc "Whether IPFS should try to run the fs-repo-migration at startup.";
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};
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ipfsMountDir = mkOption {
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type = types.str;
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default = "/ipfs";
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description = lib.mdDoc "Where to mount the IPFS namespace to";
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};
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ipnsMountDir = mkOption {
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type = types.str;
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default = "/ipns";
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description = lib.mdDoc "Where to mount the IPNS namespace to";
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};
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gatewayAddress = mkOption {
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type = types.str;
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default = "/ip4/127.0.0.1/tcp/8080";
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description = lib.mdDoc "Where the IPFS Gateway can be reached";
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};
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apiAddress = mkOption {
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type = types.str;
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default = "/ip4/127.0.0.1/tcp/5001";
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description = lib.mdDoc "Where IPFS exposes its API to";
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};
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swarmAddress = mkOption {
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type = types.listOf types.str;
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default = [
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"/ip4/0.0.0.0/tcp/4001"
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"/ip6/::/tcp/4001"
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"/ip4/0.0.0.0/udp/4001/quic"
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"/ip6/::/udp/4001/quic"
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];
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description = lib.mdDoc "Where IPFS listens for incoming p2p connections";
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};
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enableGC = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc "Whether to enable automatic garbage collection";
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};
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emptyRepo = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc "If set to true, the repo won't be initialized with help files";
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};
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extraConfig = mkOption {
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type = types.attrsOf types.anything;
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description = lib.mdDoc ''
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Attrset of daemon configuration to set using {command}`ipfs config`, every time the daemon starts.
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These are applied last, so may override configuration set by other options in this module.
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Keep in mind that this configuration is stateful; i.e., unsetting anything in here does not reset the value to the default!
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'';
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default = { };
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example = {
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Datastore.StorageMax = "100GB";
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Discovery.MDNS.Enabled = false;
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Bootstrap = [
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"/ip4/128.199.219.111/tcp/4001/ipfs/QmSoLSafTMBsPKadTEgaXctDQVcqN88CNLHXMkTNwMKPnu"
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"/ip4/162.243.248.213/tcp/4001/ipfs/QmSoLueR4xBeUbY9WZ9xGUUxunbKWcrNFTDAadQJmocnWm"
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];
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Swarm.AddrFilters = null;
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};
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};
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extraFlags = mkOption {
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type = types.listOf types.str;
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description = lib.mdDoc "Extra flags passed to the IPFS daemon";
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default = [ ];
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};
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localDiscovery = mkOption {
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type = types.bool;
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description = lib.mdDoc ''Whether to enable local discovery for the IPFS daemon.
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This will allow IPFS to scan ports on your local network. Some hosting services will ban you if you do this.
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'';
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default = false;
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};
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serviceFdlimit = mkOption {
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type = types.nullOr types.int;
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default = null;
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description = lib.mdDoc "The fdlimit for the IPFS systemd unit or `null` to have the daemon attempt to manage it";
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example = 64 * 1024;
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};
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startWhenNeeded = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc "Whether to use socket activation to start IPFS when needed.";
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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environment.systemPackages = [ cfg.package ];
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environment.variables.IPFS_PATH = cfg.dataDir;
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# https://github.com/lucas-clemente/quic-go/wiki/UDP-Receive-Buffer-Size
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boot.kernel.sysctl."net.core.rmem_max" = mkDefault 2500000;
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programs.fuse = mkIf cfg.autoMount {
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userAllowOther = true;
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};
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users.users = mkIf (cfg.user == "ipfs") {
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ipfs = {
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group = cfg.group;
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home = cfg.dataDir;
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createHome = false;
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uid = config.ids.uids.ipfs;
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description = "IPFS daemon user";
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packages = [
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pkgs.ipfs-migrator
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];
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};
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};
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users.groups = mkIf (cfg.group == "ipfs") {
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ipfs.gid = config.ids.gids.ipfs;
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};
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systemd.tmpfiles.rules = [
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"d '${cfg.dataDir}' - ${cfg.user} ${cfg.group} - -"
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] ++ optionals cfg.autoMount [
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"d '${cfg.ipfsMountDir}' - ${cfg.user} ${cfg.group} - -"
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"d '${cfg.ipnsMountDir}' - ${cfg.user} ${cfg.group} - -"
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];
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# The hardened systemd unit breaks the fuse-mount function according to documentation in the unit file itself
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systemd.packages = if cfg.autoMount
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then [ cfg.package.systemd_unit ]
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else [ cfg.package.systemd_unit_hardened ];
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systemd.services.ipfs = {
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path = [ "/run/wrappers" cfg.package ];
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environment.IPFS_PATH = cfg.dataDir;
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preStart = ''
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if [[ ! -f "$IPFS_PATH/config" ]]; then
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ipfs init ${optionalString cfg.emptyRepo "-e"} --profile=${profile}
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else
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# After an unclean shutdown this file may exist which will cause the config command to attempt to talk to the daemon. This will hang forever if systemd is holding our sockets open.
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rm -vf "$IPFS_PATH/api"
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'' + optionalString cfg.autoMigrate ''
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${pkgs.ipfs-migrator}/bin/fs-repo-migrations -to '${cfg.package.repoVersion}' -y
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'' + ''
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[[ ! -e "$IPFS_PATH/profile-nixos" || $(cat "$IPFS_PATH/profile-nixos") != "${profile}" ]] && \
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ipfs --offline config profile apply ${profile} >/dev/null
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fi
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echo ${profile} > "$IPFS_PATH/profile-nixos"
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'' + ''
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cat "$IPFS_PATH/config" \
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| ${pkgs.jq}/bin/jq '. * $extraConfig' --argjson extraConfig ${
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escapeShellArg (builtins.toJSON (
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recursiveUpdate
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{
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Addresses.API = cfg.apiAddress;
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Addresses.Gateway = cfg.gatewayAddress;
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Addresses.Swarm = cfg.swarmAddress;
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Mounts = optionalAttrs cfg.autoMount {
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FuseAllowOther = true;
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IPFS = cfg.ipfsMountDir;
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IPNS = cfg.ipnsMountDir;
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};
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}
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cfg.extraConfig
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))
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} \
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| install -m 0600 /dev/stdin "$IPFS_PATH/.config.new"
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mv "$IPFS_PATH/.config.new" "$IPFS_PATH/config"
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'';
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serviceConfig = {
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ExecStart = [ "" "${cfg.package}/bin/ipfs daemon ${ipfsFlags}" ];
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User = cfg.user;
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Group = cfg.group;
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StateDirectory = "";
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ReadWritePaths = optionals (!cfg.autoMount) [ "" cfg.dataDir ];
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} // optionalAttrs (cfg.serviceFdlimit != null) { LimitNOFILE = cfg.serviceFdlimit; };
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} // optionalAttrs (!cfg.startWhenNeeded) {
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wantedBy = [ "default.target" ];
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};
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systemd.sockets.ipfs-gateway = {
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wantedBy = [ "sockets.target" ];
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socketConfig = {
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ListenStream =
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let
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fromCfg = multiaddrToListenStream cfg.gatewayAddress;
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in
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[ "" ] ++ lib.optional (fromCfg != null) fromCfg;
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ListenDatagram =
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let
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fromCfg = multiaddrToListenDatagram cfg.gatewayAddress;
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in
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[ "" ] ++ lib.optional (fromCfg != null) fromCfg;
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};
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};
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systemd.sockets.ipfs-api = {
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wantedBy = [ "sockets.target" ];
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# We also include "%t/ipfs.sock" because there is no way to put the "%t"
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# in the multiaddr.
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socketConfig.ListenStream =
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let
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fromCfg = multiaddrToListenStream cfg.apiAddress;
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in
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[ "" "%t/ipfs.sock" ] ++ lib.optional (fromCfg != null) fromCfg;
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};
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};
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}
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